<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        var arr = [{name:"lisi"},{name:"wangwu"}];
        function deepClone(obj){
            //如果是初始值 直接返回
            let result;
            if(obj instanceof Array){
                 result = []
            }else if(typeof obj =="object"){
                result = {}
            }else{
                return obj
            }
            for(let key in obj){
               
                result[key] = deepClone(obj[key])
            }
            return result
        }

        var newArr = deepClone(arr)
        arr[0].name = "react"
        console.log(newArr);
    </script>
</body>
</html>